Girodisc 380x36 Front Brake Discs for Audi RS3 (8Y) (2022+) with CCB

The Girodisc A1-355 front brake discs, measuring 380 × 36 mm, optimize consistent braking performance during spirited driving on the Audi RS3 (8Y) equipped with carbon-ceramic rotors (2022+). Their cast-iron pads and aluminum hubs form a floating assembly designed to manage thermal stress and facilitate pad replacement due to wear. Sold as a pair, including one left and one right disc.

These rotors are intended for the front axle of compatible vehicles in the configuration specified below. They retain the calipers from the compatible mounting; any required spacers and brake pad specifications must be followed.

The curved internal cooling fins channel air through the disc to dissipate heat during repeated braking. The floating mounting minimizes stresses caused by thermal expansion differences between the pad and the housing and helps the pad center itself between the brake pads, maintaining consistent contact even when hot.

The hub is made of 6061-T6 aluminum.

New brake pads must be installed with new rotors or brake discs. Their shape and compound must match the mounting, cast iron material, and intended use; follow the specific requirements for this part number and perform the prescribed break-in procedure.

On compatible vehicles originally equipped with carbon-ceramic rotors, this pair provides a conversion solution to high-quality cast-iron rotors. It allows you to remove and store the expensive original carbon-ceramic rotors to preserve them during heavy use, while reusing compatible calipers. Use new brake pads suitable for cast iron and adhere to the pad shapes and any spacers specified by the part number. Replaceable brake pads reduce the cost of replacing braking surfaces in heavy-duty uses and offer a choice of linings to tailor bite and pedal reaction to the intended use.

Specifications for Girodisc A1-355 rotors for compatible vehicles

• Brand: Girodisc
• PartNumber: A1-355
• Position: front
• Sizes (diameter × thickness): 380 × 36 mm
• Vehicles and models: Audi RS3 (8Y) with carbon-ceramic rotors (2022+)
• Braking surface material: high-resistance cast steel
• Packaging: Pair of complete rotors, one left and one right with disc bells.
• Housing: 6061-T6 aluminum
• Construction: two-piece floating mounting design
• Catalog part number: D1-355. Verify compatibility with the caliper generation before replacement.
• Internal ventilation: directional curved fins
• Minimum thickness: 34 mm
• Original rotor diameter: 360 mm
• Manufacturing of main components: United States

Vehicles compatible with Girodisc part number A1-355

• Audi RS3 (8Y) with carbon-ceramic rotors (2022+)

• Audi RS3 (8Y) with carbon-ceramic rotors (2022+): For factory carbon-ceramic brakes on the front.

Each application is subject to its specific brake system configuration, calipers, and any requirements for brake pads or spacers. Please verify these conditions before ordering.

Girodisc A1-355 Mounting Requirements

• Audi RS3 (8Y) with carbon-ceramic rotors (2022+): For factory-equipped carbon-ceramic brakes on the front.

Brake Pads and Brake Systems for Compatible Vehicles

Choose brake pads whose shape is compatible with the calipers, track, and/or the A1-355 rotor, and whose compound is suitable for sport driving or track use. The Endless, pagid Racing, or Ferodo Racing ranges may be considered after verifying the appropriate part number.

For intensive use, we recommend compatible aviation-grade flexible hoses and high-performance brake fluid that meets the vehicle’s specifications, along with proper bleeding and fluid replacement. This recommendation complements the mounting compatible with the original hydraulic system.

Maintenance of the Girodisc mounting on compatible vehicles

Replacing the pads alone helps keep the controlled rotors in good condition. Reusing a rotor for up to three pad replacements is subject to inspection of its condition, its mounting components, and the mounting instructions; this number does not constitute a guaranteed service life. Use a new mounting component with each pad replacement.

FAQ — Girodisc A1-355 for compatible vehicles

What are the sizes of the A1-355 discs for my vehicle? The part number shown measures 380 × 36 mm and is mounted on the front axle. The diameter alone is not sufficient: also check the brake system type and mounting requirements.

Is the product sold in pairs? Yes. It includes a left and a right disc for the same axle. Both discs come with their disc bells.

Do I need to replace the brake pads on my vehicle?Yes. Always install new brake pads with new rotors or new braking surfaces. Their shape and compound must be compatible with the A1-355 track and/or rotor and with the calipers. Then break in the rotors and pads according to the prescribed procedures.

How do I identify the left and right sides? Girodisc rotors come with a label attached to each rotor: LEFT for the left side and RIGHT for the right side, as viewed in the direction of travel. On a left-hand-drive vehicle, “LEFT” corresponds to the driver’s side and “RIGHT” to the passenger side. Follow these labels and the instructions. On models with curved internal fins, the rolling direction depends on this internal ventilation; the surface grooves alone are not sufficient to determine the side.

How do I break in this mounting on my vehicle? Follow the Girodisc procedure and the brake pad manufacturer’s instructions to build up an even transfer ply. The PDF documents below detail installation and break-in.

PDF Documents for Mounting and Break-in

We have included two PDF documents below: an instruction manual for installing and breaking in the discs, and an instruction manual for installing new tracks on existing bowls. Consult the document that applies to your specific task before you begin.

Key Features of Girodisc A1-355 Bowl Brake Discs

• 380 × 36 mm size for front braking on compatible vehicles.
• 6061-T6 aluminum rotor and floating mount to manage thermal stresses.
• Internal ventilation via curved fins to dissipate heat.
• Replaceable brake pads to maintain a two-piece mounting.
• Left/right pair identified for mounting.
• Aluminum rotors to control the unsprung mass and rotating mass of the conversion kit.